| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 11 |
| 3 | 122 |
| 4 | 1814 |
| 5 | 26311 |
| 6 | 399849 |
| 7 | 6013669 |
| 8 | 91842381 |
| 9 | 1400573929 |
| 10 | 21492587457 |
| 11 | 330100781811 |
| 12 | 5085688832352 |
| 13 | 78450837933529 |
| 14 | 1212393597214424 |
| 15 | 18758126651572197 |
| 16 | 290589347000277975 |
| 17 | 4505965014075887115 |
[2,11,122,1814,26311,399849,6013669,91842381, 1400573929,21492587457,330100781811,5085688832352, 78450837933529,1212393597214424,18758126651572197, 290589347000277975,4505965014075887115] |